3_12_07 - Mitosis/Meiosis 3/15/2007 Mitosis is the equal...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Mitosis/Meiosis 3/15/2007 Mitosis is the equal distribution of information Prophase = folding or packaging (condense) the chromatin to chromosomes. Break down the nuclear envelope Form the nuclear spindle Metaphase= chromosomes line up at the equator due to the nuclear spindle pulling Anaphase= chromosomes are pulled to opposite poles of the cell Telophase= decondense the chromosomes and nuclear envelope reforms Asexual reproduction and cell division Bacterial cell division Binary fission See fig 12.10 See fig 12.11 G 1 checkpoint G 2 checkpoint Chemical signals that set up the cell to undergo the next phase of cell division. Families of chemicals 1. Cyclin dependent genes (CDC genes) a. Cyclin dependent kinases b. Cyclins (bind to cycline dependent kinases to activate those kinases and therefore their pathways allosterially => MPF = maturation promoting factor= CDK + cyclin) i. Activates pathways involved in mitosis ii. Activates pathways to degrade cyclin 1. Negative feedback pathway
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/29/2009 for the course NPB NPB 101 taught by Professor Weidner/wingfield during the Spring '08 term at UC Davis.

Page1 / 3

3_12_07 - Mitosis/Meiosis 3/15/2007 Mitosis is the equal...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online